Quote:
Originally Posted by Abhi_b
Got Bimmerlink opened the valve removed the fuse 203 and guess what absolute waste of time, money and effort 😄 It works yes flap stayed open but barely any noticeable difference in sound forget pops or bangs on the contrary the nice blip blip which I used to get on launch when gears changed is gone the fuse is going back in tomorrow. Please save yourself the effort if like mine you own the X5 40i M sport My2021. Cheers
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Contrary, many others, including myself, have noted significant improvement in exhaust sound with flap permanently open (but it is, of course, not even close to a full exhaust overhaul, it would be silly to expect otherwise). If it didn't work as expected for you, it would be more prudent for you to question and investigate that rather than making an arrogant recommendation based on your rather limited experience. It's possible that there are changes in MY2021 or in recent software that have an effect. Or the comparative test environment is unlike most others (it may be a difference in engine or environment temperatures, or I'll note that sound improvement is more pronounced when starting and driving in Sport+ mode). A little humility is in order ...